package cn.net.cfss.fgbp.provider.console.utils;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import java.util.HashSet;
import java.util.Set;

/**
 * @author oygq
 * @title: EntityUtil
 * @description: TODO
 * @date 2019/4/18 11:48
 */
public class EntityUtil {

    /**
     * 获取实体类为空的字符串
     * @param source
     * @return
     */
    public static String[] getNullPropertyNames (Object source) {
        final BeanWrapper src = new BeanWrapperImpl(source);
        java.beans.PropertyDescriptor[] pds = src.getPropertyDescriptors();

        Set<String> emptyNames = new HashSet<String>();
        for(java.beans.PropertyDescriptor pd : pds) {
            Object srcValue = src.getPropertyValue(pd.getName());
            if (srcValue == null || "".equals(srcValue)) emptyNames.add(pd.getName());
        }
        String[] result = new String[emptyNames.size()];
        return emptyNames.toArray(result);
    }
}
